"They are now required to have a $7.25 minimum wage, so to go from that to $12 is a big leap," Clinton previously told CNN.
In the platform amendment Friday, Democrats praised the movement to gradually increase minimum wages in New York and California -- a movement Sanders made a hallmark of his presidential run.
"(We) need at least $15 an hour," Sanders said at a rally in July 2015.
"We've got to end the starvation minimum wage of $7.25 and raise it to $15," he said during a debate with Clinton in April.
"If somebody works 40 hours a week in the United States of America, that person should not be living in poverty," Sanders told Iowa Public Television in September. "That's what a $15 minimum wage would do."
But shortly after the minimum wage proposal sailed through unchallenged, two other Sanders-backed amendments to expand Social Security got shot down. So while Clinton and Sanders are negotiating, they're not entirely on the same page.
Speculation is growing that Sanders will endorse Clinton soon, possibly as soon as this coming week.
This video includes clips from KERO and Bernie 2016. Music provided courtesy of APM Music.